Window-sash stop



May 20, 1930. G. H. PADDocK WINDOW sAsH sToP Filed lax-ch 2, 1927 Patented May 20, 1930 UNITED STATES GEORGE HARRISON IIEADDOCK,v OF SUPERIOR, WISCONSIN PATENT OFFICE WINDOW-SASH STOP Application led March 2, 1927. Serialy No. 172,183.

' sash, within the limits of the window frame, and between the guiding strips whichfare generally known as window stops, and .which v will more and more tightly `engage with these guiding strips in proportion to they upward pressure of the lower sash thereagainst, thereby eectually preventing a burglar or other unauthorized person from 'raising the lower sash beyond the predetermined limit defined by this portable sashstop.

Other objects and important features will be pointed out or implied in the following details of description, in connection with the accompanying drawings in which:

Figure 1 is a face view of one of the portable sash stops in position immediately above a lower window sash and between the guiding strips for said sash.

, Figure 2 is a view showing'the rear section of the casing, the pivotally mounted pawls or dogs, the actuating plunger and the spring which actuates the vactuating plunger, the parts being in the normal position.

Figure 3 is a perspective view of the device.

Figure 4C is a perspective view of the' rear section of the casing.

Figure 5 is a perspective View ofthe front sectionof the casing.

Figure 6 is an edge view of one of the dogs or sharp pointed levers which engage and penetrate the guiding strips of the window frame.

referring to these drawings .in detail, in which similar reference lcharacters correspond to similar parts throughout the several views, and in which the lower sash 10 and the sash guiding strips 11 are shown merely to illustrate the application of the invention; such invention will nowvbe described as fol lows: v

The casing is preferably forme-d of two intertting sections 12 and 13 each provided with an upright part having an opening 14 therethrough for receiving a screw 15 on which is pivoted two dogs or sharp ended levers 16 and 17, and for combining with a nut 18 for holding the casing sections together. The sharp upper ends of the members 16 and 17 extend through recesses 19 of the casing -member 13. The levers 16 and 17 are each provided with an actuating arm 20 which extends downward'and has a curvedcam surface 21; and between these cam surfaces 21, a plunger-head 22 is disposed, beingv held in the normal position (Fig. 2) by means of a spring 23 around the plungerfstem 24, which latter extends through an aperture 25 of the horizontal lower flange of the body or casing member 12. The purpose of the pungerstem 24 is to coact with the spring 23 for directing and pushing the plunger-head 22 upwardvbetween the cam surfaces 21 so as to force and hold the pointed upper ends of the members 16 and 17.0ut through the respective vopenings 19 and against the-guiding strips 11 of the window frame, inthe position shown in Fig. 1; In this connection, it will be understood that the springpressed levers or dog members 16 and 17 bear with sulhcient force against the guiding strips 11 to support the weight of this device above the lower window sash, Vand therefore, its effectiveness is not altered by lowering the window sash, and itcmay be allowed to remain from day to day and from monthvto month in the same effective position, or may be quickly removed and replaced in any other effective position above the window sash.

For the purpose of retractingthe plunger 22-24 against the pressure of the spring 23, this plunger may be provided with any convenient form of foot or handle 26, preferably a centrally apertured sheet metal member into whichjthe lower endv of the plunger is fitted and'riveted. 'By forming the mem! ber 26 separate from the stem 24, the spring 23 can first be passed onto the stem, and then the part 26 riveted thereon. By grasping the foot or handle 26 and pulling it downward, the dog members 16 and 17 are free to be vwindow sash is moved upward against the plungerY foot 26, the'head 22 spreads the cam-arms 21 and forces the sharp'ends of the members 16 and 17 into the wooden guiding strips 11. The greater the pressure against the plunger 24, the greater the pressure of thedogs 16 and 17 against the guiding.. strip, and this pressure combinesV with Y the upward movement of the device and thus forces the sharp points of the members 16 and. 17 deeper and'dceper into the guiding'strip ll1,

n thereby effectively anchoring the device to the window fra-me, andprioviding aneffective stop or barrier against raising the lower sash to any appreciable extent. Y e

For use in windows lwhere sash` cords vare employed, the device maybe made considerably thinner than is indicated by thesedrawings in which case, thev plunger stem 24 and the` spring 23 can be correspondingly of less diameter,jand the dog members V19 of less thickness than is indicated by Fig. 6, The foot or handle 26 may be provided with a recess to receive the sash cordnand prevent interference with the latter. It shouldbe understood that this device is to be inserted behind the sash cord, that. is, betweenthe sash-cord and the window-frame.

Numerous changes ymay be, made within the scope of the inventive ideas as implied and claimed. Y Y r Wh at I claim as my invention is LA window-sa'sh-stop including a casing having openings in two opposite sides and also having an opening through its lower end, a spring-pressed plunger mounted for iupward and downwardmovement inV thelast said opening, two dog membersv pivotally mounted in said casing and having sharp ends extending into.y the first said openings,

respectively and being Voperable by said spring-pressed vplunger fory extending said sharp Vends, and said plunger-being operable by said spring to pressrthe plunger-head upward between the cam surfaces and thereby press the sharp ends of the levers against sash-guiding strips between which this win-V dow-sash-stop is insertible.

3. A window sash stop including4 a body composed of an uprightnpart and a horizontal lower flange, two sharp-endedf-levers Ypivotally mounted on saidupright part and adapted to be inserted between the sashguiding strips of a window-frame, cachot these levers Ybeing provided with a downwardly i extending ,arm-,1 meansV associated with said flange andv extending Vabove and below the .lange and operablefby' an upward movement of a window sash for forcing the sharp ended levers into said guiding strips, and a spring seatedV on said flange andY exert-ing a pressure efforce against vsaid downwardly extending arms in `such relation as to hold Y the sharp-ended levers against said guiding strips, forthe purposes specified.

In testimony whereof I aiiiX my signature.

, GEORGE HARRISON PADDocK.

sharp ends in opposite directions from thecasing Vand causing them vto ,bear against Ysashguiding stripsbetween which the win- Y ydow-sash-stop is insertible, these dog-members being adapted toengage `and penetrate the sash-guiding-strips upon upward moveyment of a window sash against the window sash stop, substantially as described. '2. VA window-sash-stop including a casing ,e li'aving openings in two opposite sides and through its lower end, a plunger extending.

headrand the lower part ofthe casing and through the opening vin said lower end and Y Vhaving a head, a spring seated between saidv ver; 

